Ken, threads drift and this diversification is actually quite interesting.
OK, we got invited to a wardroom bash on a Royal Navy vessel (don't ask me type - not good with ships). The occasion was due to a visiting Admiral. The officers had decided to invite a couple who owned a hotel they frequented on shore visits. After many drinks the lady decided to do her party piece of hand stands. Probably more appropriate in the other ranks mess as she wasn't wearing any underwear
Never got to hear what was said at the Captain's 'debrief'.